sort of related,a few years ago i decided to fit cross needle swr+power meters to a diy atu(TMATCH) ,built the rf bridge then made a cal pcb with high+low power adjustment pots for power high,power low,swr fwd swr rev high and low,life got in the way so it got put on hold as i could still use the atu with an outboard swr/power meter,just finaly finished it yesterday,by this time i had forgoten all the pcb and powerswitch hi low connections,took ages to sort it as i made no schematic when i built it all and never marked anything,its now finished+ working fine,should of finished it back then and not left it,now looking for something else to finish off!